OH3SW — reception at SO8OO

Observed FT8 message patterns

Attributed sample

1,852 messages

Active dates

9 UTC dates

Estimated median S/N

-4 dB

Estimated 10th-90th percentile

-10 to +2 dB

Recurring-pattern threshold

Met

SO8OO display ranges among successful decodes: weak (≤ -16 dB) 14, moderate (-15 to -9 dB) 287, strong (≥ -8 dB) 1,551.

WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent.

Frequent counterpart tokens observed at SO8OO

Tokens most often paired with OH3SW in decoded directed-looking exchanges:

Attributed messages by UTC hour

Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.

Most frequent locator attributed to OH3SW

The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.

Attributed locator

KP20 · 1,326 decoded messages

SO8OO receiver locator

KN09VW

Locator-centre separation

1,192 km (approx.)

Last such locator decoded

2026-11-05 19:53 UTC

A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

UTC    dB Audio  Message
194200  -1 2476  OH3SW G4DBW JO01
194230 -16 1847  OH3SW IZ3KLB JN55
194330  -5 2476  OH3SW G4DBW JO01 (x2)
194430  -7 2732  OH3SW F4BYA JN19 (x2)
194530 -13 2476  OH3SW G4DBW JO01
194530  -5 2732  OH3SW F4BYA JN19
194600 -11 2476  OH3SW G4DBW JO01
194930 -12  591  OH3SW R7BI KN96
195015 -14  589  CQ OH3SW KP20
195230  -1  588  OH3SW DA2DH JO62 (x3)
195345 -13  588  CQ OH3SW KP20

UTC    dB Audio  Message
175115  -5  552  CQ OH3SW KP20
175130  +3 1442  OH3SW IN3XUG JN55
175130  -4  552  OH3SW DO8JB JO32
175145  -3  552  CQ OH3SW KP20
175200  +4 2371  OH3SW IQ4JO JN63
175200  +0 1442  OH3SW IN3XUG JN55
175200  -3  552  OH3SW DO8JB JO32 (x2)
175245  +0  552  CQ OH3SW KP20
175300  -3  552  OH3SW DO8JB JO32
175315  -5  552  CQ OH3SW KP20
175330  -6  552  OH3SW DO8JB JO32 (x4)

Decoder S/N history by band

Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.